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October 1, 2014

October 1, 2014

Posted by **Anonymous** on Monday, January 30, 2012 at 12:57am.

vertical m from ground???

f the ball is still in the air, how long before it hits the ground? (If the ball is not in the air, enter 0.)????

If the ball is still in the air, where will it be with respect to the starting point once it lands???

Please helppp

- PHYSICS -
**Henry**, Tuesday, January 31, 2012 at 7:39pma. h = Vo*t + 0.5g*t^2 = 20.6 m.

0 + 4.9t^2 = 20.6,

t^2 = 4.20,

Tf = 2.05 s. = Time to fall to ground.

b. Dx = Xo * Tf,

Dx = 21m/s * 2.05s = 43.05 m.

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